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Volumn 75, Issue 23, 2010, Pages 8048-8059

Preparation of stereodefined homoallylic amines from the reductive cross-coupling of allylic alcohols with imines

Author keywords

[No Author keywords available]

Indexed keywords

ALKOXIDES; ALLYLIC ALCOHOL; ALLYLIC TRANSPOSITION; AROMATIC IMINES; ARYL HALIDES; ASYMMETRIC COUPLING; C-C BOND FORMING; CARBOMETALATION; COMPLEX FUNCTIONS; COUPLING PROCESS; COUPLING REACTION; CROSS-COUPLINGS; DIASTEREOSELECTION; DIVERSE RANGE; EMPIRICAL MODEL; EN-ROUTE; ENANTIOSELECTIVE COUPLING; HETEROCYCLES; HOMOALLYLIC AMINES; HOMOALLYLIC POSITIONS; ORGANOMETALLIC REAGENT; ORGANOMETALLIC TRANSFORMATION; THIOETHERS; TRANSITION STATE GEOMETRY; TRIFLUOROMETHYL GROUP; TRISUBSTITUTED ALKENES;

EID: 78650278356     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo101535d     Document Type: Article
Times cited : (36)

References (89)
  • 1
    • 0004114335 scopus 로고
    • For a discussion of strategy in complex molecule synthesis, along with detailed case studies, see:; John Wiley & Sons, Inc.: New York
    • For a discussion of strategy in complex molecule synthesis, along with detailed case studies, see: Corey, E. J.; Cheng, X.-M. The Logic of Chemical Synthesis; John Wiley & Sons, Inc.: New York, 1989.
    • (1989) The Logic of Chemical Synthesis
    • Corey, E.J.1    Cheng, X.-M.2
  • 3
    • 78650276583 scopus 로고    scopus 로고
    • For reviews, see:, Ed.; Wiley-VCH: Weinheim
    • For reviews, see: Otera, J., Ed. Modern Carbonyl Chemistry; Wiley-VCH: Weinheim, 2000; p 613.
    • (2000) Modern Carbonyl Chemistry , pp. 613
    • Otera, J.1
  • 5
    • 0000554723 scopus 로고    scopus 로고
    • For a current review of allylation chemistry, see:; In;, Ed.; Wiley-VCH: New York,; p. For a current review on the application of the allylation reaction to the synthesis of natural products, see
    • For a current review of allylation chemistry, see: Denmark, S. E.; Almstead, N. G. In Modern Carbonyl Chemistry; Otera, J., Ed.; Wiley-VCH: New York, 2000; p 299. For a current review on the application of the allylation reaction to the synthesis of natural products, see
    • (2000) Modern Carbonyl Chemistry , pp. 299
    • Denmark, S.E.1    Almstead, N.G.2    Otera, J.3
  • 8
    • 0037145988 scopus 로고    scopus 로고
    • Notable exceptions include bifunctionalized allylmetal reagents and complex crotylsilanes. For recent discussions, see:;, and references therein
    • Notable exceptions include bifunctionalized allylmetal reagents and complex crotylsilanes. For recent discussions, see: Flamme, E. M.; Roush, W. R. J. Am. Chem. Soc. 2002, 124, 13644 and references therein.
    • (2002) J. Am. Chem. Soc. , vol.124 , pp. 13644
    • Flamme, E.M.1    Roush, W.R.2
  • 10
    • 0041878778 scopus 로고    scopus 로고
    • For a review of catalytic enantioselective addition of allylic organometallic reagents to aldehydes and ketones, see:;, For a review of catalytically generated allylic metal reagents that serve as electrophiles, see:; Angew. Chem., Int. Ed. 2008, 47, 258
    • For a review of catalytic enantioselective addition of allylic organometallic reagents to aldehydes and ketones, see: Denmark, S. E.; Fu, J. Chem. Rev. 2003, 103, 2763 For a review of catalytically generated allylic metal reagents that serve as electrophiles, see: Lu, Z.; Ma, S. Angew. Chem., Int. Ed. 2008, 47, 258
    • (2003) Chem. Rev. , vol.103 , pp. 2763
    • Denmark, S.E.1    Fu, J.2    Lu, Z.3    Ma, S.4
  • 12
  • 14
    • 0000643934 scopus 로고
    • For the coupling of alkynes with allylic ethers, see
    • For the coupling of alkynes with allylic ethers, see: Suzuki, N.; Kondakov, D. Y.; Takahashi, T. J. Am. Chem. Soc. 1993, 115, 8485
    • (1993) J. Am. Chem. Soc. , vol.115 , pp. 8485
    • Suzuki, N.1    Kondakov, D.Y.2    Takahashi, T.3
  • 22
    • 70349972518 scopus 로고    scopus 로고
    • Concurrent with our studies, Professor Cha recently reported a related process:; Org. Lett. 2009, 11, 3132
    • Takahashi, M.; McLaughlin, M.; Micalizio, G. C. Angew. Chem., Int. Ed. 2009, 48, 3648 Concurrent with our studies, Professor Cha recently reported a related process: Lysenko, I. L.; Lee, H. G.; Cha, J. K. Org. Lett. 2009, 11, 3132
    • (2009) Angew. Chem., Int. Ed. , vol.48 , pp. 3648
    • Takahashi, M.1    McLaughlin, M.2    Micalizio, G.C.3    Lysenko, I.L.4    Lee, H.G.5    Cha, J.K.6
  • 48
    • 70749158234 scopus 로고    scopus 로고
    • For reviews, see
    • For reviews, see: Olan, A.; Six, Y. Tetrahedron 2010, 66, 15
    • (2010) Tetrahedron , vol.66 , pp. 15
    • Olan, A.1    Six, Y.2
  • 52
    • 74549172880 scopus 로고    scopus 로고
    • For a recent discussion on a subset of such limitations (with respect to alkynes), see:;, For a review of metallacycle-mediated cross-coupling with substituted and electronically unactivated alkenes, see:; Chem. Sci. 2010, 10.1039/C0SC00394H
    • For a recent discussion on a subset of such limitations (with respect to alkynes), see: Reichard, H. A.; McLaughlin, M.; Chen, M. Z.; Micalizio, G. C. Eur. J. Org. Chem. 2010, 391 For a review of metallacycle-mediated cross-coupling with substituted and electronically unactivated alkenes, see: Reichard, H. A.; Micalizio, G. C. Chem. Sci. 2010, 10.1039/C0SC00394H
    • (2010) Eur. J. Org. Chem. , pp. 391
    • Reichard, H.A.1    McLaughlin, M.2    Chen, M.Z.3    Micalizio, G.C.4    Reichard, H.A.5    Micalizio, G.C.6
  • 54
    • 37049017393 scopus 로고    scopus 로고
    • Related processes for the stereoselective coupling of internal alkynes or vinylsilanes with allylic alcohols, see
    • Related processes for the stereoselective coupling of internal alkynes or vinylsilanes with allylic alcohols, see: Kolundzic, F.; Micalizio, G. C. J. Am. Chem. Soc. 2007, 129, 15112
    • (2007) J. Am. Chem. Soc. , vol.129 , pp. 15112
    • Kolundzic, F.1    Micalizio, G.C.2
  • 56
    • 0000458209 scopus 로고
    • As a result of the low reactivity of substituted alkenes in intermolecular carbometalation chemistry, we reasoned that pre-association of the allylic alkoxide with the Ti-imine complex would be required for productive C-C bond formation. For a discussion of directed reactions in organic chemistry, see
    • As a result of the low reactivity of substituted alkenes in intermolecular carbometalation chemistry, we reasoned that pre-association of the allylic alkoxide with the Ti-imine complex would be required for productive C-C bond formation. For a discussion of directed reactions in organic chemistry, see: Hoveyda, A. H.; Evans, D. A.; Fu, G. C. Chem. Rev. 1993, 93, 1307
    • (1993) Chem. Rev. , vol.93 , pp. 1307
    • Hoveyda, A.H.1    Evans, D.A.2    Fu, G.C.3
  • 57
    • 77952002170 scopus 로고    scopus 로고
    • For a recent study that explores the potential of reversibility in related Ti-promoted coupling reactions of homoallylic alcohols with imines, see
    • For a recent study that explores the potential of reversibility in related Ti-promoted coupling reactions of homoallylic alcohols with imines, see: Takahashi, M.; Micalizio, G. C. Chem. Commun. 2010, 46, 3336
    • (2010) Chem. Commun. , vol.46 , pp. 3336
    • Takahashi, M.1    Micalizio, G.C.2
  • 58
    • 78650279871 scopus 로고    scopus 로고
    • An empirical model based on related boat-like transition states is consistent with the stereochemical results of Ti-alkoxide-promoted vinylsilane-allylic alcohol (ref 19b), and alkyne-allylic alcohol (ref 19a) coupling reactions
    • An empirical model based on related boat-like transition states is consistent with the stereochemical results of Ti-alkoxide-promoted vinylsilane-allylic alcohol (ref 19b), and alkyne-allylic alcohol (ref 19a) coupling reactions.
  • 60
    • 44949131028 scopus 로고    scopus 로고
    • For recent examples of imine allylation using preformed allylic silanes, see
    • For recent examples of imine allylation using preformed allylic silanes, see: Huber, J. D.; Perl, N. R.; Leighton, J. L. Angew. Chem., Int. Ed. 2008, 47, 3037
    • (2008) Angew. Chem., Int. Ed. , vol.47 , pp. 3037
    • Huber, J.D.1    Perl, N.R.2    Leighton, J.L.3
  • 62
    • 0034704337 scopus 로고    scopus 로고
    • For recent examples using preformed allylic stannanes, see:; Angew. Chem., Int. Ed. 2001, 40, 1896
    • Schaus, J. V.; Jain, N.; Panek, J. S. Tetrahedron 2000, 56, 10263 For recent examples using preformed allylic stannanes, see: Gastner, T.; Ishitani, H.; Akiyama, R.; Kobayashi, S. Angew. Chem., Int. Ed. 2001, 40, 1896
    • (2000) Tetrahedron , vol.56 , pp. 10263
    • Schaus, J.V.1    Jain, N.2    Panek, J.S.3    Gastner, T.4    Ishitani, H.5    Akiyama, R.6    Kobayashi, S.7
  • 64
    • 33845379064 scopus 로고
    • For recent examples employing preformed allylic boron reagents, see:; J. Am. Chem. Soc. 2006, 128, 9646
    • Keck, G. E.; Enholm, E. J. J. Org. Chem. 1985, 50, 146 For recent examples employing preformed allylic boron reagents, see: Wu, T. R.; Chong, J. M. J. Am. Chem. Soc. 2006, 128, 9646
    • (1985) J. Org. Chem. , vol.50 , pp. 146
    • Keck, G.E.1    Enholm, E.J.2    Wu, T.R.3    Chong, J.M.4
  • 68
    • 14844346557 scopus 로고    scopus 로고
    • For examples using in situ generated allyl palladium reagents, see:; J. Am. Chem. Soc. 2003, 125, 14133
    • Shimizu, M.; Kimura, M.; Watanabe, T.; Tamaru, Y. Org. Lett. 2005, 7, 637 For examples using in situ generated allyl palladium reagents, see: Fernandes, R. A.; Stimac, A.; Yamamoto, Y. J. Am. Chem. Soc. 2003, 125, 14133
    • (2005) Org. Lett. , vol.7 , pp. 637
    • Shimizu, M.1    Kimura, M.2    Watanabe, T.3    Tamaru, Y.4    Fernandes, R.A.5    Stimac, A.6    Yamamoto, Y.7
  • 69
    • 33846170860 scopus 로고    scopus 로고
    • For recent examples employing allylic zinc reagents, see:; Org. Lett. 2001, 3, 2773
    • Hopkins, C.; Malinakova, H. C. Org. Lett. 2006, 8, 5971-5974 For recent examples employing allylic zinc reagents, see: Wipf, P.; Kendall, C. Org. Lett. 2001, 3, 2773
    • (2006) Org. Lett. , vol.8 , pp. 5971-5974
    • Hopkins, C.1    Malinakova, H.C.2    Wipf, P.3    Kendall, C.4
  • 70
    • 23944497536 scopus 로고    scopus 로고
    • For a recent example using in situ generated allylic titanium reagents, see:; J. Org. Chem. 1995, 60, 8136 For reviews on the synthesis of homoallylic amines via allylic metal reagents, see:; Pure Appl. Chem. 2006, 78, 1397
    • Wipf, P.; Pierce, J. G. Org. Lett. 2005, 7, 3537 For a recent example using in situ generated allylic titanium reagents, see: Gao, Y.; Sato, F. J. Org. Chem. 1995, 60, 8136 For reviews on the synthesis of homoallylic amines via allylic metal reagents, see: Ramachandran, P. V.; Burghardt, T. E. Pure Appl. Chem. 2006, 78, 1397
    • (2005) Org. Lett. , vol.7 , pp. 3537
    • Wipf, P.1    Pierce, J.G.2    Gao, Y.3    Sato, F.4    Ramachandran, P.V.5    Burghardt, T.E.6
  • 75
    • 0034755306 scopus 로고    scopus 로고
    • Few reactions are broadly useful for the formation of homoallylic amines that establish both an allylic stereocenter and a stereodefined alkene. Examples include
    • Few reactions are broadly useful for the formation of homoallylic amines that establish both an allylic stereocenter and a stereodefined alkene. Examples include: Kazmaier, U.; Zumpe, F. L. Eur. J. Org. Chem. 2001, 4067
    • (2001) Eur. J. Org. Chem. , pp. 4067
    • Kazmaier, U.1    Zumpe, F.L.2
  • 80
    • 41849126809 scopus 로고    scopus 로고
    • For a recent evaluation of the rate of interconversion of zirconaaziridine enantiomers, see
    • For a recent evaluation of the rate of interconversion of zirconaaziridine enantiomers, see: Cummings, S. A.; Tunge, J. A.; Norton, J. R. J. Am. Chem. Soc. 2008, 130, 4669
    • (2008) J. Am. Chem. Soc. , vol.130 , pp. 4669
    • Cummings, S.A.1    Tunge, J.A.2    Norton, J.R.3
  • 82
    • 78650258024 scopus 로고    scopus 로고
    • these experiments, 2 equiv of the imine were employed. While it is likely that the chiral Ti-imine complex rapidly undergoes inversion, these experiments cannot provide support that the current process defines a dynamic kinetic resolution
    • In these experiments, 2 equiv of the imine were employed. While it is likely that the chiral Ti-imine complex rapidly undergoes inversion, these experiments cannot provide support that the current process defines a dynamic kinetic resolution.
  • 83
    • 78650256811 scopus 로고    scopus 로고
    • Note that the %ee of homoallylic amine products (eqs 12-14) reflect the %ee of the allylic alcohol starting materials. While we were also successful at accomplishing asymmetric coupling between a chiral allylic alcohol possessing a trisubstituted alkene [(R)- 34 ] and imine 14, we were unable to establish the ee of the homoallylic amine product by HPLC or derivatization (this coupling reaction proceeded in 77% yield). Given the likely mechanistic course of this coupling reaction, and our inability to identify a minor isomer, the transfer of stereochemical information in this process is reasoned to be as high as that depicted in eq 12. This expectation is in accord with a the highly diastereoselective coupling of imine 14 with the chiral allylic alcohol 60 which occurred with superb levels of diastereoselectivity. (10a)
    • Note that the %ee of homoallylic amine products (eqs 12-14) reflect the %ee of the allylic alcohol starting materials. While we were also successful at accomplishing asymmetric coupling between a chiral allylic alcohol possessing a trisubstituted alkene [(R)- 34 ] and imine 14, we were unable to establish the ee of the homoallylic amine product by HPLC or derivatization (this coupling reaction proceeded in 77% yield). Given the likely mechanistic course of this coupling reaction, and our inability to identify a minor isomer, the transfer of stereochemical information in this process is reasoned to be as high as that depicted in eq 12. This expectation is in accord with a the highly diastereoselective coupling of imine 14 with the chiral allylic alcohol 60 which occurred with superb levels of diastereoselectivity. (10a)
  • 85
    • 72249090214 scopus 로고    scopus 로고
    • During the course of these studies with allylsilanes, we observed that a simple allylsilane related to 73, but bearing a primarly allylic alcohol, undergoes reductive cross-coupling with aromatic imines in a uniquely regioselective manner. Here, C-C bond formation occurs primarily at the internal carbon of the alkene, generating a 1,3-aminoalcohol product. Studies aimed at understanding this shift in site-selectivity are ongoing
    • Yang, D.; Micalizio, G. C. J. Am. Chem. Soc. 2009, 131, 17548. During the course of these studies with allylsilanes, we observed that a simple allylsilane related to 73, but bearing a primarly allylic alcohol, undergoes reductive cross-coupling with aromatic imines in a uniquely regioselective manner. Here, C-C bond formation occurs primarily at the internal carbon of the alkene, generating a 1,3-aminoalcohol product. Studies aimed at understanding this shift in site-selectivity are ongoing.
    • (2009) J. Am. Chem. Soc. , vol.131 , pp. 17548
    • Yang, D.1    Micalizio, G.C.2
  • 89
    • 78650267815 scopus 로고    scopus 로고
    • For a discussion in the context of regioselective reductive cross-coupling reactions of disubstituted alkynes, see ref 17
    • For a discussion in the context of regioselective reductive cross-coupling reactions of disubstituted alkynes, see ref 17.


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